Perhaps in an alternate universe, this would be totally believable. Particularly if Picard had been held captive for a much longer period, and the experience made him more hardened. But it's very well done, regardless. I love the style you use, Kracov. Is the 'DATADATADATA...' bit an in-joke as Picard pummells Madred? Otherwise it's a bit odd.

The "ah-datadata..." part mimics the part in the Fist of the North Star series where the protagonist uses a move called Hundred Crack Fist, and does a hundred hits. He says "Ah-tatatatatata..." like a machine gun.

I think its great!! I don't think the nitpicking is warranted. Clearly this Picard is not supposed to be acting in character, otherwise it wouldn't be funny! Did Picard have bulging muscles in the show as well? Of course not, but no one has mentioned anything about that...